Re: How do I Draw a rectangle, not a square!

[Marcus G. Daniels]

>>>>> "WS" == William S Shu <address@hidden> writes:

WS> I may be missing something, but the following code (swarm 1.4.1)
WS> to draw a rectangle seems to ignore my y1 coordinate, and computes
WS> another so I obtain a square with size (x1-x0), with top-left
WS> positioned at (x0,y0).  (x1,y1) is supposed to be bottom-right.

This works for me with 2.0.1 on Windows and X11.  (That problem was fixed
shortly after the 1.4.1 release.)

#import <simtools.h>
#import <objectbase/SwarmObject.h>
#import <gui.h>
#import <defobj/defalloc.h> // getZone

#define XSIZE 200
#define YSIZE 200

BOOL quitFlag = NO;

@interface MyClass: SwarmObject
{
  id <Colormap> colormap;
  id <ZoomRaster> raster;
  id <ButtonPanel> panel;
}
- drawRectangle;
@end

@implementation MyClass

- exit
{
  quitFlag = YES;
  return self;
}

- drawRectangle
{
  [raster erase];
  [raster rectangleX0: 50 Y0: 50 X1: 150 Y1: 100 Width: 1 Color: 1];
  [raster drawSelf];

  return self;
}

- zoomIn
{
  [raster increaseZoom];
  [self drawRectangle];

  return self;
}

- zoomOut
{
  [raster decreaseZoom];
  [self drawRectangle];

  return self;
}

- createEnd
{ 
  colormap = [Colormap create: getZone (self)];
  [colormap setColor: 0 ToName: "red"];
  [colormap setColor: 1 ToName: "green"];

  raster = [ZoomRaster create: getZone (self)];
  [raster setColormap: colormap];
  [raster setWidth: XSIZE Height: YSIZE];
  [raster setWindowTitle: "Raster"];
  [raster setZoomFactor: 1];
  [raster pack];
  
  panel = [ButtonPanel createBegin: getZone (self)];
  [panel setButtonTarget: self];
  panel = [panel createEnd];
  [panel setWindowTitle: "ControlPanel"];
  [panel addButtonName: "ZoomIn" method: @selector (zoomIn)];
  [panel addButtonName: "ZoomOut" method: @selector (zoomOut)];
  [panel addButtonName: "Exit" method: @selector (exit)];
  
  return self;
}
@end

int
main (int argc, const char **argv)
{ 
  id mainObj;

  initSwarm (argc, argv);

  mainObj = [MyClass create: globalZone];
  [mainObj drawRectangle];


  while (!quitFlag) { while (GUI_EVENT_ASYNC ()) {} }
}

/*
Local Variables:
compile-command: "$SWARMHOME/bin/libtool-swarm --mode=link gcc -DDLL -o 
rectangle -g -Wno-import -I$SWARMHOME/include -L$SWARMHOME/lib rectangle.m 
-lswarmdll -lobjcdll"
End:
*/

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